<%@ page contentType="text/html;charset=UTF-8"%>
<html>
<head>
    <meta charset="UTF-8"/>
</head>
<body>
<h2>Hello World!</h2>
${msg}
<hr>
字符串传递参数
${uname}<br>
${pwd}<br>
<hr>
int 数组传递参数<br>
${ids}<br>
<hr>
list集合 数组传递参数<br>
${ids}<br>
</body>
</html>